Berkey Big Gravity Water Filter vs Boroux Legacy 3-Gallon Gravity Filter

Both are stainless steel gravity filters that need no plumbing, so the choice comes down to certification and filter cost versus capacity and proven field use. The Boroux Legacy has WQA certification to NSF/ANSI 42, 401 and 372, a 3-gallon tank and a 90-second automatic primer, which suits a household that wants documented contaminant claims and easy setup. The Big Berkey holds 2.25 gallons, runs on Black Berkey elements rated for 3,000 gallons each, and has a long track record with off-grid and emergency users. Reviewers of the Boroux praise its filtration, build and looks; Berkey owners value the modular steel build and the ability to filter untreated water from lakes and streams.

• Choose the Big Berkey if you want a proven gravity filter for off-grid, travel or emergency use and prefer long-life elements rated at 3,000 gallons each.
• Choose the Boroux Legacy if you want third-party NSF certification, a larger 3-gallon tank and a priming tool that finishes in about 90 seconds.